Oven light



Dec. 21 1926. 1,611,562

v C. P. ROBSON OVEN LIGHT Filed June 12, 1924 Patented Dec. 21, 1926.

`UNTED STATES PATENT YFFECE.

- CHARLES 1?. ROBSON, 0F LANSDOVNE, PENNSYLVANA.

Application filed .Tune 12, 1924. Serial No. 719,493.

rlhe principal objects oi the present invention are, first, to providefor easily and conveniently turning the device toadmit light to the'oven and to close the opening through which the light is admitted toprevent escape oi vapors and the like from the ovenand to protect thelamp or light; second, to facilitate the ase of either gas orelectricity; and third, to simplify and improve both the constructionand operation of the oven lamp.

Other objects of. the invention will appear from the followingdescription which will be given in connection with the accompanyingdrawings and finally the invention will be claimed.

In the accompanying drawings- Figure 1 is an elevational view of thelight as seen from the front or" the oven.

Fig. 2 is a sectional View taken on the line 2-2 of Fig. 3.

Fig. 3 is a sectional View taken on the line 3-3 of Figure l, and l Fig.4 is a sectional view taken on the line 44 of Fig. 2.

In the drawings 1 is a rectangular housing having an open front 2 and acylindrical back wall 3 provided with a window 4 fitted with bars 5.There is a flange 6 projecting inwardly around the margin of the window.7 is a revoluble cylindrical member or casing open top and bottom andhaving'substantially one-half of its wall closed as at 8, and havingsubstantially one-half of its wall open as at 9. There is at each end ofthe revoluble member an annular flange 10, and the flanges 10 areconnected by flanges 11 arranged between the open and closed walls 8 and9. The opening 9 may be fitted with a transparent sheet as of mica orthe like 12 which may be removable. From the closed wall 8 at the top ofthe cylindrical member extends toward the center oi the latter an arm 13provided with a pivot 14. Depending from the top wall of the housing 1there is a stirrup l15 fitted with bearings 16 and 17 for the pivot 14.There is a suspension bearing shown as of the antifriction or ballbearing variety and one of its elements 18 is fast on the pivot 14,andthe other of its elements 19 is seated on the stirrup.

The pivot and axis ofthe cylindrical member are shown as arrangedslightly out of vertical so that the flanges 10 on the cylindricalmember by gravity are held up against the top and bottom flanges of theopening 4, thus insuring a good joint, and the flanges 11 malte a goedjoint with the upright parts ot the ange G Furthermore the cyiindricalmember can be very easily rotated asl by means of' the handle 20. 'Fiestud 21 to which the handle 2O is pivoted is arranged in line with apair oi' stops 22 provided on the inner wall ot the rectangular housing1, so that the turning motion of the cylindrical member is properlylimited in order to insure alignment of the upright parts of the iiange6 and of the flanges 11. The gas connection 23 is fixed to the bottom ofthe housing 1, whereas the electric light fitting 24 is merely placed inor taken out of' the housing as may be required, and this can be donebecause it is supplied by a flexible cable 25. To facilitate this thefront half`9 of the revoluble cylindrical member or casing can bedetached from the other half 8 of the caS- ing by the joints which areprovided between the lugs 26 on the detachable section and the notcheson the projections 27 on the section of the casing which is litted withthe arm 13.

It will be obvious to those skilled inthe art to which the inventionrelates that modiiications may be made in details of construction andarrangement without departing from the spirit ofthe invention which isnot limited to those matters or otherwise than as the prior art and theappended claims may require. f

I claim: f

1. An oven light comprising a housing having an open front and acylindrical back wall provided with a window, a revoluble cylindricalcasing, a suspension pivot bearing interposed between the top of thehoneing and the top of the casing and constituting the Sole support forthe casing, said pivot bearing being arranged slightly out of verticaland conccntrically with respect to the casing and eccentrically withrespect to the cylindrical back wall to compel the cylindrical member bygravity to contact with the housing.

2. An oven light comprising a rectangular housing having an open frontand a cylindrical back wall provided with a barred win dow there being aflange projecting inwardly around the margin of the window, a revolublecylindrical casing having a closed wall and an open wall there being aflange at the top and bottom of the casing and also two upright fiangesfor co-operation with the flange ci the housing, an arm projectingtoward the Center of the casing und provided' with a pivot, and aStiirup anti'friction'beari ing depending from the top of the housingfor cooperation with the pivot to support the entire Weight of thecasing and to permit the ange to Contact by gravity.

3. An oven .iight Comprising a housing having an open iiont and acylindrical back wail provided with a Window, a revoluble Cylindricaleasing having at its top an arm and having un open bottom and includinga section that is detachable, an electric lamp itting removable upon theVdetachment of said section, und a Suspension bearing interposed betweenthe arm and the top ot' the housing and arranged out of alignment withthezix'is of the casing.

CHAS. P. ROBSON.

